thumb|A hot toddy thumb|Information board highlighting the hot toddy at Ye Olde Red Cow pub in London A hot toddy, also known as hot whiskey in Ireland, and occasionally called southern cough syrup w
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b87a75e4354cc4a118578a4f8d8b91306898c5b94f492e4935222184a241bd4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a4c62f2-17ee-4a96-a7a4-f559e01453dd.json and https://artists.proofprofile.net/proofs/artist/6a4c62f2-17ee-4a96-a7a4-f559e01453dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bdac70b84e74a1185cae572259a7088c4a7b57d3fe4e1fdf6cb2d435e6116f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:07:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUZG00933327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6458c5f69da1278e92c874bb0b18fe5e9796b057fde2a36ff6c9f67315095236. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUZG00933328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b4192a987188d0715dc36a12ab48b45a606dcda5dc118e58c8cf16e392a0da. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUZG00933335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c5788bf82981d81e41b9473a40dfc6d80b6aa24c129eefc709b06bc6a23d03. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZ650517283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c804e83f81a23c4c13e869355ce5ff9f3cc345fc628f0d25e91c13065cc1335. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEN580900404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ebd090063108ce0758d6e1ef51349e70a2b3a905fd759b7786b7e1814ffc1e. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:59:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USOM81041401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11e0ecae316efac5ba5491ee750e75c630b5c7889d283bf999a3cc9e5df7728. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USOM81044004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf1cfa0d9bc68c46fd487af501ee265b6c415365c5c10235efaf9dedf1485d4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USOM81044005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244ad40933aa4c6a3bb1b85cd47b70d8c873247e0af93d28a4f397659a9915e6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USOM81044010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99fc363481e809e83145c5836f084e241dac2d0989759b5ed022e5c9c3818928. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USOM81258301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bda5997466b3fc7c20a7fd1609838b0dfd832b8590cd27ec156a4bd42f57c5. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEY472085231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4851157776df6cf135b62ae59b925d3b40c32cd9665563d26d929f0998b02e48. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEY472085233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7da7814f8f58183a92f6cfffbb52db1050ffb6bf6fe0c6958ef7ff70b85e892. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCPZ2221646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5dccae1bf17b557d5ffd8a36616e09a2b1271f1b7f34c0d2facf3b2db48b96. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:02:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCPZ2221647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae460962ec2942bdd33ed880010074ca00a0af722a5c30f97481b1c54aa767f5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPKF1300003.
Eskimonde - A Decade Of Eskimo Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c804e83f81a23c4c13e869355ce5ff9f3cc345fc628f0d25e91c13065cc1335. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEN580900404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dc4d386fbe7221e8d957dcf8839956e9adb75a204bc7946803014880309366. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG932201927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72aed2c10b08389a58c1858d4f6af29306950e03c7c46f61396130cb2cbf514. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWY0900073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cb4823999bdaf52f7486e93ee818c6228542ef505518cf4fc5248600833400. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWY1100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b238e0209f5b6a43f633a1fe2a40bc89a4eacfdd132d3f6cb1c734cbe96df5. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN062100545.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b2f947c1af11186da0392e0b37a3935d10eaaa1c884a6a74114d426cae0807. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFBC1601534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9ce1fb206fb1c33684aa726b398980c19b14aa6e8040335b214ff45d1111d8. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPKF1700011.
We Can Change the World - Hot Toddy Come Together Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99c3569f99f7d653a1e486ee78c6b6f0f2d52009f7cf651e6865084f82f01d0. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP081700094.